Properties of Rhomb Porphyry lan Itacolumite
ukuran gandum
grained nggoleki
coarse utawa nggoleki
rengat
conchoidal
conchoidal
porosity
banget kurang keropos
Highly keropos
luster
subvitreous kanggo kurang
kurang
cleavage
sampurna
sampurna
tartamtu gravitasi
2.86
2.2-2.8
Kapadhetan
2.8-2.9 g / cm 3
2.2-2.8 g / cm 3
resistance
tahan panas, meksa tahan
tahan panas, impact tahan, meksa tahan